Thill-coupling



(No Model.)

S. H. & E. TYSON.

THILL COUPLING.

No. 413,378. Patented 001:. 22, 1889;

Yr V5555." 6 Y W I 2 UNITED STATES PATENT OFFICE.

SAMUEL H. TYSON AND EZEKIEL TYSON, OF IVEST BOYLSTON,

MASSACHUSETTS.

SPECIFICATION forming part of Letters Patent No. 413,378, dated October 22, 1889.

Application filed May 29, 1889. Serial No. 312,558- (No model.)

T 0 all whom it may concern.-

Be it known that we, SAMUEL I-I. TYSON and EZEKIEL TYsoN, both of West Boylston, in

the county of Worcester, State of Massachusetts, have invented certain new and useful Improvements in Thill-Couplings, of which thefollowing is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation of our improvement, the axle being shown in section and the shaft broken off; Fig. 2, a vertical transverse section taken on line 00 0c in Fig. 1; Fig. 3, a horizontal section on line y y in Fig. 1,

and Fig. 4 a central vertical longitudinal section of the same.

Like letters and figures of reference indicate corresponding parts in the diiferent fig-:

ures of the drawings.

Our invention relates to means for preventing ca'rriage-thills from rattling; and it consists in certain novel features, as hereinafter fully set forth and claimed, the object being to produce a simpler, cheaper, and more ef fective device of this character than is now inordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from the following explanation In the drawings, A represents the shaft; B, the thill, and C the axle.

Two clips D E are preferably employed for each thill, and are secured to the axle in the ordinary manner by nuts band straps cl. Each clip is provided with an outwardly-projecting horizontal arm f, or a single clip may be employed provided with two of said arms, if desired. A vertically arranged diagonal groove or socket 9 (see Fig. 3) is formed in the inner face of each arm fito receive trunnions h on the sides of the thill B. A block 2' is secured to the axle A between the cliparms f, or the clips may be sunken into said axle to form said projection. A rectangular block H is fitted to enter the arms f between the projection 73 and thill B, said block having a shoulder is (see Fig. 2) for engaging a clip-arm f, and to prevent it from accidentally falling. A pin m, cushioned on a spring 19 in a horizontal chamber qin said block, projects from the edge thereof below the cliparms when said block is in position, and prevents it from being withdrawn. A curved fiat spring Q) is bolted at w to the rear side of the block H, and passes around the lower edge thereof, its free end a engaging the thill B and acting expansively to hold it in position in the trunnion-sockets g of the clips.

In the use of our improvement the shaft is adjusted by inserting the thill-trunnions h. in the clip-sockets g. The pin m is then forced into the chamber q against the pressure of. the spring 19, and the block H forced into the space between its shoulder is engages the top of one of said arms, at which time the pin m will be free and forced outward by its spring into the position shown in Fig. 2. The force of the fiat spring o, pressing against the thill,drives its trunnions into the inner ends of the sockets g and serves to cushion said thill, preventing it from rattling in a manner readily obvious without a more explicit description.

It will be seen that our improvement perinits the shafts to be removed much more quickly and with less trouble than in ordinary couplings when nuts and bolts are employed.

Instead of the fiat spring r, arranged as described, a coiled or elliptical spring, secured to the outer face of the block H, may be used, if preferred.

Having thus explained our invention,what we claim is- The combination of an axle-clip provided with arms having inclined sockets, a thill provided with trunnionsadapted to rest in said sockets, a projection on the axle between said arms, a removable block inserted between said arms and between said block and the thill, and a spring on said block hearing against said thill, said block being provided with a lateral shoulder and a springpin for engaging the upper and lower edges of said arm.

SAMUEL H. TYSON. EZEKIEL TYSON.

Witnesses:

WALTER W. NEWTON, J 0s. GIRLBRUTTER, Jr.

the clip-arms f until 

